Directory

Blockchain startup ecosystem

Founders, investors, and support organizations active in Blockchain.

Showing 13 of 866 entries.

Balaji Srinivasan

Warsaw, Poland · Angel Investor

Renowned Silicon Valley investor and ex-Coinbase CTO, Balaji made a notable investment in Polish crypto startup Aleph Zero. His involvement gave international credibility to Poland’s blockchain scene. Balaji often highlights Poland as a source of strong cryptography talent. Associated startups: Aleph Zero, and advocacy for Polish crypto developers globally.

Angel InvestorSeedCryptoBlockchain

Chainalysis

Copenhagen, Denmark · Startup

Chainalysis was co-founded in 2014 by Danish entrepreneur Michael Gronager to bring transparency to crypto markets. The company builds blockchain analytics software used by exchanges, regulators, and law enforcement to trace illicit activity and manage compliance risk. Chainalysis grew into a global leader in crypto intelligence, raised major rounds, and built offices worldwide while keeping a Danish engineering footprint. It is one of the most valuable companies with Danish founding roots in the blockchain sector.

StartupGrowthBlockchainComplianceFintech

Crypto Finance Conference

St. Moritz, Switzerland · Event Organisator

Organizer of the Crypto Finance Conference in St. Moritz.

Event OrganisatorEventsFintechBlockchain

Elevator Ventures

Vienna, Austria · Accelerator

Raiffeisen Bank International's venture unit investing in fintech and banking innovation across CEE.

AcceleratorSeed to Series AFintechBlockchainBanking

European Blockchain Convention 2026

Barcelona, Spain · Event

Leading blockchain and Web3 conference with startup pitching, regulation panels, and fintech innovation talks. Dates TBA (mid-February).

EventEventsBlockchainFintech

Kasia Pieniądz

Warsaw, Poland · Angel Investor

Angel investor and board member at COBIN Angels, Kasia is based in Switzerland and helps connect Swiss and Polish startup ecosystems. She is vice-president of the Swiss-Polish Blockchain Association and brings specialization in health economics. Her portfolio and advisory focus include Bitfold and early-stage teams using blockchain in healthcare data management and security.

Angel InvestorPre-Seed to SeedBlockchainHealthTechMedTech

Paris Blockchain Week

Paris, France · Event Organisator

Organizer of Paris Blockchain Week and related startup competition programming for Web3 founders.

Event OrganisatorEventsWeb3BlockchainStartup Ecosystem

Piotr Smoleń

Warsaw, Poland · Angel Investor

A fintech entrepreneur (ex-CEO of Turbine Analytics), Piotr co-founded Data Ventures and also invests personally in tech startups. He has shown particular interest in blockchain and DeFi startups and is ranked among the top crypto-focused angels in Poland with investments in blockchain companies. Associated startups: Aleph Zero (blockchain platform) and multiple fintech/crypto ventures.

Angel InvestorPre-Seed to SeedBlockchainFintechDeFi

Roham Gharegozlou

Warsaw, Poland · Angel Investor

CEO of Dapper Labs (Canada) and creator of NBA Top Shot, Roham extended his crypto enthusiasm to Poland by investing in Reality Games (a Kraków-based mobile gaming startup leveraging blockchain). He exemplifies global crypto investors tapping Polish gaming expertise. Associated startups: Reality Games, and advising Polish blockchain game devs.

Angel InvestorSeedGamingBlockchain

SMOK Ventures

Warsaw, Poland · Incubator

Founded 2019. Seed fund focused on gaming, esports, and blockchain startups in CEE.

IncubatorPre-Seed to SeedGamingEsportsBlockchain

Tatum

Prague, Czech Republic · Startup

Tatum is a developer platform that unifies dozens of blockchain protocols into a single API, allowing enterprises to build crypto features without specialized blockchain teams. The platform abstracts wallet creation, transactions, and smart contract interactions into simple endpoints. By 2026, Tatum positions itself as the “Stripe for crypto infrastructure,” serving banks and fintechs that want to launch regulated digital-asset services. Its focus is on reliability and developer speed rather than speculative crypto exposure.

StartupGrowthBlockchainInfrastructureDeveloper Tools

Wojtek Kostrzewa

Warsaw, Poland · Angel Investor

A prominent Polish business leader (ex-CEO of ITI Group and mBank), Wojtek pivoted to fintech entrepreneurship and angel investing. As CEO of blockchain fintech Billon Group, he personally invested in Billon and other tech ventures. He was honored as Business Angel of the Year in 2018 for his consistent support of startups. His angel investments include Billon (DLT payments), Quedex (crypto exchange), and AdEmotion (AI marketing). Associated startups: Billon Group, Quedex, AdEmotion.

Angel InvestorSeed to Series AFintechBlockchainMarTech